CVE-2018-7557
Publication date 28 February 2018
Last updated 25 August 2025
Ubuntu priority
Description
The decode_init function in libavcodec/utvideodec.c in FFmpeg 2.8 through 3.4.2 allows remote attackers to cause a denial of service (Out of array read) via an AVI file with crafted dimensions within chroma subsampling data.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| ffmpeg | 18.04 LTS bionic |
Fixed 7:3.4.4-0ubuntu0.18.04.1
|
| 16.04 LTS xenial |
Fixed 7:2.8.15-0ubuntu0.16.04.1
|
|
| 14.04 LTS trusty | Not in release |
Severity score breakdown
CVSS version: CVSS v3.0
Base score
6.5 · Medium
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H